1. Bronstein, M., AND Davenport, J. H. Algebraic properties of the Lambert W function.
2. Comtet, L.Advanced Combinatorics. Reidel, 1974.
3. Corless, R. M., Davenport, J. H., David J. Jeffrey, Litt, G., and Watt, S. M. Reasoning about the elementary functions of complex analysis. In Proceedings AISC Madrid (2000), vol. 1930 of Lecture Notes in AI, Springer. Ontario Research Centre for Computer Algebra Technical Report TR-00-18, at http://www.orcca.on.ca/TechReports .
4. Corless, R. M., Gonnet, G. H., Hare, D. E. G., Jeffrey, D. J., and Knuth, D. E. On the Lambert W function. Advances in Computational Mathematics 5 (1996), 329–359.
5. Corless, R. M., AND Jeffrey, D. J. The unwinding number. SigsamBulletin 30,2 (June 1996), 28–35.